Joe Marini

Joe Marini is a Senior Developer Advocate at Google, and has worked in the web and software industries for more than 20 years. He was an original member of the Dreamweaver engineering team at Macromedia, and held prominent early roles in creating products such as QuarkXPress, Microsoft Expression Blend, mFactory’s mTropolis, and Extensis QX-Tools. He is regularly a featured speaker at industry conferences and has authored or co-authored several publications on web and software development. Prior to Google, Joe was responsible for the mobile web developer platform for Windows Phone 7 at Microsoft. His book, The Document Object Model, is widely regarded as the definitive resource for working with the DOM.

Introduces the LESS and Sass tools—dynamic CSS style sheet preprocessors that add features like variables, conditionals, and functions to the CSS language and can accelerate complex CSS implementations.